Weighing-machine



4 SheetsSheet 1.,

(N0 Model.)

P. H. RICHARDS. WEIGHING MACHINE.

No. 570,297. Patented Oct. 27, 1896.

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(No Model.) 4 Sheets-Sheet 2 F. H. RICHARDS. WEIGHING MACHINE.

NO. 570,297. Patented 0013.27, 1896.

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OQQ QM I I fl (No Model.) 4 SheetsSheet 3. F. H. RICHARDS.WBIGHINGMAGHINE.

No. 570,297. Patented Oct. 27, 1896.

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(No Model.)

4 Sheets-Sheet 4. F. H. RICHARDS.

I WEIGHING MACHINE. No. 570,297.

PatentedOot. 27, 1896.

J71 venar/ wz'inesses My. M

UNITED STATES PATENT OFFICE.

FRANCIS H. RICHARDS, OF HARTFORD, CONNECTICUT.

WEIGHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 570,297, dated October27', 1896.

Application filed June 13, 1896. $erial No. 595,381. (No niodeLi To allwhom it may concern.-

Be it known .that I, FRANCIS II. RICHARDS, a citizen of the UnitedStates, residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in\Veighing-Machines, of which the following is a specifica tion.

This invention relates to weighing-machines, an object of the inventionbeing to provide an improved organization of mechanism comprising achute and a feeder or conveyer located adjacent thereto, said feeder orconveyer being driven by a body of material passing through said chute,my present improvements being applicable to machines for weighingsubstances of different classes, but more especially those of aslow-running nature; and afurther object of the invention is to providevalve mechanism and adjunctive devices cooperative therewith forcontrolling the passage of material to the bucket of the machine.

In the drawings accompanying and forming part of this specification,Figure 1 is a righthand end elevation of a weighing-machinecomprehending my improvements in the preferred embodiment thereof,illustrating the positions assumed by the various parts at thecommencement of operation. Fig. 2 is a plan view of the upper part ofthe machine, and Fig. 3 is a front elevation of the same. Figs. 4c and 5are end elevations, as seen from the left in Fig. 3, the working partsbeing shown in the positions occupied thereby at the commencement andclose of the poising period, respectively. Fig. 6 is avicwsimilar toFig. 1, showing the bucket discharging a load.

Similar characters designate like parts in all the figures of thedrawings.

he framework for supporting the operative parts of the weighingmechanism maybe of any suitable character, and it is herein illustratedcomprising the side frames or columns 2 and 4, mounted upon thechambered supporting-base 3, into which the bucket loads of material areintermittently discharged.

The supply apparatus comprises as one of its constituent elements achute or hopper II, which is adapted to contain the mass of ma terial tobe weighed for delivery to the bucket or load-carrying receptacle of themachine, and said hopper is shown having formed integral therewith thelaterally-extending brackets 5 and 5', which. are respectively at tachedby suitable fastening means to the side frames 2 and i.

The bucket is designated by Gand is of the well-known single-chamberedtype, it being widened at the top for a purpose that will. hereinafterappear.

As a means for supporting the bucket, I have herein illustrated beammechanism of the duplex type, although it is obvious that the bucket maybe otherwise suspended, and said beam mechai'iism is illustratedconsisting of the oppositely-disposed counter-weighted scale-beams l3and 13.

As a means fol-supporting the beam mechanism, the devices illustratedmay be employed, the latter consisting of V-shaped bearings (i and 6,respectively, mounted 011 the base 3, itbeing understood that four ofsuch supports will be furnished, the arms of the scale-beams beingequipped with pivots or knife-edges 7 and 7, respectively, resting onsaid beam-support. The beam-arms will also be provided withbucket-supports, two of these being shown as pivots or knife-edges S and8, against which bearings 9 and 9, respectively, connected to the bucketG, are adapted to work.

The closer for the bucket is designated by L, and preferably consists ofa fiat plate fitting tightly against the lower edge of the bucket whenin its normal position, as indicated in Fig. 1, and pivotally supportedadjacent to the discharge-outlet thereof. Said closer may havecounterweighted arms or blades 12, formed in one piece therewith, thepurpose of said blades being to return the closer to its normal positionon the discharge of the bucket load. It is obvious, however, that othermeans may be employed for this purpose.

As a means for holding the closer L against opening movement, thefollowing-described instrumentalities, embodying a suitable latch, maybe employed: A rocker is shown at 15 pivotally supported near the upperedge of the bucket and at one side thereof, said rocker constituting onemember of a toggle, the other member thereof being the connecting-rod1(3, pivotal] y attached to said. rocker and also to the closer L, andin such a manner that when the latter is in its shut or normal positionthe three toggle-pivots will be virtually in line, the upper pivot ofthe rod 16 being situated above the rocker-pivot, so that the rocker 15,when engaged by a suitable restraining device, may be held againstmovement by a slight exertion of power. For thus maintaining the .rockeragainst movement a counter-weighted latch is illustrated. at 17, itbeing adapted to engage said rocker or the arm 15 thereof when the partsare in the normal positions indicated in Fig. 1. in the embodimentillustrated the latch 17 swings upward to engage the rocker, and it willbe evident that it may be released therefrom by downward pressure, themeans for accomplishing this purpose being hereinafter described.

My invention contemplates the employment in connection with a chute of afeeder located adjacent to and driven by a body of material passingthrough said chute, the re sult being a great reduction in the powernecessary to maintain the machine in operation, and therefore a materialsaving in running expenses. In the form. herein illustrated the feederwill be utilized for furnishing the drip-stream. necessary in apractically-operating machine to complete the bucket load, apower-operated drip-supply device usually being employed in connectionwith machines for weighing materials possessing certain peculiarities.

The chute or hopper if .is shown having the spent 18 communicating withthe interior thereof and terminating in an opening or outlet 18, thesaid spout serving as a means for directing a gravitating stream ofmaterial to the bucket, such stream constitutin the main stream andfurnishing the major part of a bucket load.

The chute ii is shown having a drip or storage chamber 1!), formed bythe open-ended conduit 20, which may be a tube of cylindrical or otherform.

An inclined stream-directing plate is shown at 21, (see Figs. 4 and 5,)leading from the interior of the chute or hopper II to the drip orstorage chamber 10, over which a body of material is adapted to flow,the same passing through the drip-opening 2]., formed on the front wallof the chute II.

The feeder or conveyer r is operable as an effective medium forsupplying the drip stream on the cut-off of the main stream and tocomplete the partial bucket load, and is bodily movable through thedrip-comluit 20 at the proper period. in the operation of the machine,being preferably limited in its action by suitable means during thegreater portion of the loading period or while the main stream isflowing into the bucket.

The drip-feeder F is shown as being of the endless conveyer type, and,as before stated, has a movement through the drip-conduit during acertain. period .in. the operation of the machine, it being forciblyactuated or operated by the impact against its floats or vanes of a bodyor stream of material flowing through. the drip-opening 21 in. the frontwall of the chute. ly the employment of this device, should the materialtend to block or clog in the conduit 20, the weight thereof actingagainst the vanes of the feeder will forcibly operate said feeder toclear the conduit of such material.

The chute if is shown supporting the conveyer-shafts 22 and 223, journaled in brackets thereon, said shafts having keyed or otherwisefixed thereto the s n'ocket-wheels 2-1: and 25, about which islooselypassed the sprocketchain 26, these parts being of any suitable orpreferred type.

The vanes or float 27 on the feeder 1 are approximately flat disks,preferably equaling in area the bore of the drip-conduit so, throughwhich they pass, or they may be of any preferred shape, and alsoconnected to the sprocket-chain 20 at suitable intervals.

For controlling the main stream of material which flows from the spout18 of the chute ii a main valve 28, of the scoop type, ishereinillustrated, said valve having an oscillating movement beneath the mouthof the spout to either cut off or permit the flow of the main streamtherefrom. The valve 28 is pivotally suspended between the arms 25.) and21), projecting rearward from the brackets 5 and 5, respectively, atwo-part rock-shaft Lit) constituting a convenient means for supportingthe valve. The valve 28 is illustrated in its full open position in Fig.1, so that the full volume of the main stream may flow from the spout18, being directed by said valve into the bucket G.

For effecting an upward oscillation or cutoff movement of the valve 28 acounter-- weighted arm 31 is illustrated projectin g rearward from thevalve-supporting shaft 31), the normal tendency of th is counterweightedarm being to effect a closing of the valve, this action, however, beingsuitably limited or checked.

For opening the valve the following-described mechanism may be employed:The scale-beam B is shown having pivoted there to adjacent to its innerend the counterweighted lever 32, constituting a valve-opening actuator.A relatively long rod is shown at 35 operatively connected with the valve 28, it being pivoted to the counterweighted arm 31, said rod beingalso connected by a link. 80, or otherwise, with a fixed part of themachine and being in engagement with the counterweighted lever 32. Thecounterweight of the lever 32 will normally exert its force on thecounterpoised side of the scale-beam l3, suitable stops being employedfor maintaining the same in such relation, so that it becomes in effecta fixed extension of said scale-beam, being descendible therewith,whereby 011 the downward movement of the latter during the loadingperiod such lever constitutes a means for checking; the closing movementof the valve 28 by its counterweighted arm 31.

At a predetermined point in the operation of the machine the lever 32 isshifted about its axis, as illustrated in Fig. 6, and on the returnstroke thereof to its normal position, as shown in Fig. 1, an upwardthrust will be imparted to the rod 33 and communicated to the valve 28to open the same.

The tendency of the body of material which passes from the interior ofthe chute over the stream-directing plate 21 and into the chamber 19 isto force the individual feeder floats or vanes 27 downward by impactthereagainst when these are on the inner run thereof; but suitabledetent means will preferably be employed for arresting such actionduring the major portion of the loading period, and theinstrumentalities herein shown for this pur pose will nowbe described.The feeder-supporting shaft 22, to which reference has been made, isshown extended and carrying at its outer end the notched or toothedstop-wheel 35, which may be splined or otherwise attached to said shaft.A detent or restraining device for the feeder is shown at 36, consisting in the present instance of a counterweighted lever pivotallysupported 011 one of the end walls of the chute H, the tooth-shaped end36 of said lever being adapted to be thrust between the notches orserrations of the stop-wheel 35 by the force of the counterweight 36thereof, whereby the feeder F may be positively held against movementwhile such relation continues.

It will be obvious that when the end 36 of the detent 36 is forced outof the notches of the stop-wheel 35 and past the plane of the peripherythereof the latter is free to turn, whereby the feeder may be forciblyactuated by the mass of material in said chute, the latter being feddownward by said feeder F from the drip-chamber 19 and into the bucketG. As the feeder floats or vanes pass out of the conduit 20, and as theyapproach the outer run thereof, they will assume at first an an.- gularposition and then a vertical, so that the material thereon may bepositively dropped therefrom.

A detent-actuatoris shown at 40 consisting of a compound or two-armedlever pivotally supported on the chute H, said lever being alsocounterweighted, the object of the counterweight being to maintain thelever against movement when in its normal position. The counterweightedarm of said lever is shown having fixed thereto the projection or stud41, which has a movement into engagement with the counterweighted arm ofthe detent device 36 on the working stroke of said lever.

It will be evident that on the continuation of such movement thecounterweighted arm of the detent 36 will be raised, thenon-counterweighted arm thereof being oppositely moved, whereby it isforced out of engagement with the stop-wheel 35, so that the feeder Fwill be thereby freed of all restraint and may be driven by thedescending body of material within the chute H in the manner previouslydescribed. The oppositely-extending arms of the compound lever 40 areshown having loosely suspended therefrom the operatingrods 42 and 43,which pass through suitable guide bores or apertures formed in thebracket 5, said rods being pivoted to said lever-arms.

The action of the feeder will preferably be controlled from somercciprocatory member of the weighing mechanismas, for example, from thevalve 28wl1ereby the oscillation of the lever 40 may be effected at apredetermined point in the movement of said valve to thereby start thefeeder F, as will hereinafter appear.

A drip or drizzle valve is shown at 45, it be in g substantiallypan-shaped and pivotally supported for oscillation beneath the outlet ofthe drip-chamber 19, whereby it is adapted on its closing movement tocut off the drip and catch the drizzle from the feeder F on the completion of the bucket load. The valve 45 is shown hung from therock-shaft 46, the ends of which are journaled in brackets 47 an d 48,attached to the parts 5 and 5 of the frame of the machine, said valvebeing also balanced, so that it has in itself no tendencyto move ineither direction when in its closed position, as indicated in Fig. 6,the balance-weight 4.9,suitably attached to the shaft 46, being employedfor this purpose.

As a means for actuating the valve 45 to close the same, the mechanismdisclosed in Letters Patent No. 548,843, granted to me October 29, 1895,may be employed, and, being shown,will nowbe described. A valve-closin gcam is shown at 50 in position to receive a thrust from a valve-closingactuator to be transmitted to the valve 45. The side frame 4 is shownpivotally supporting the valve-clos ing lever or actuator 51, the frontarm of which is provided with an antifriction-roll 52, adapted to travelalong the working face of the cam 50 on the descendingmovement of thecounterweighted arm of said lever, whereby said valve will be closed.The following-described means may be employed for opening said valve:The shaft 46 is furnished with a relatively short arm 53, to which ispivoted the connecting-rod 54,the free end of the latter be ing inengagement with the counterweighted lever 32 on the scale-beam B,whereby the closing movement of said valve 45 by its actuator 51 will bechecked or retarded, as in the case of the valve 28. W hen said lever 32returns to its normal position in the manner previously described, anupward thrust will be transmitted to the connecting-rod 54 andcommunicated to the valve 45 to open the same and permit the supply ofthe drip-stream to the bucket at the proper period in the operation ofthe machine.

The valve 28 is shown carrying a by-pass device 60, the arc of movementof which is intersected by the depending rod 42, so that when said rodis engaged by said by-pass d cvice the result willbc an oscillation ofthe com.- pound lever-l and the moving of the detent device 36 out ofengagement with the stopwheel 35, wherebythe feeder F may be operated,as hereinbefore specified. The by-pass device 60 consists of anangle-lever, one of the arms of which is countcrweighted, by which theprojection 60 thereof may be held against the projecting pin (31 on thevalve 28, whereby when in such position the bypass (O constitutes .ineffect a fixed projection on the valve 28. \Vhen the valve 28 has cutoff the main. stream of material, the by-pass 60 will be moved intocontact with the depending rod 2, which action. will elevate the sameand swing the lever it) about its center of movement, so that the latterraises the counterweighted arm of the detent 3t through the interventionof the pin i1, forcing the noii-countcrweightcd or free arm of saiddetent out of a notch of the stop-wheel 35, in which. it may be seated,whereby the feeder F may be driven. On the opening movement of the valve28 the upper arm of the by-pass device (30 will impinge against the rod42 and the latter will simply rock said by-pass devi ce ineffeetivelyabout its pivot, following wnich the projection. 60 will be forced intocontact with the pin (51 a second pin (32 on said valve limiting therange of action of the by-pass device to.

The drip-valve 15 is equipped with means for returning the compoundlever to its normal position, whereby the pin i1 thereof may be movedfrom under the coui'lterweiglited arm of the detent device 36, the end36 of the latter being thereby forced between the teeth of thestop-wheel for stopping the movement of the feeder F. Thedrip-valvesupporting shaft 16 is provided with the rigid arm (55, whichon the cut-off movement of said valve is adapt-ed to engage thedepending rod 4 so that said rod may be thrust upward, which rocks thelever 40 and moves the pin 41 from under the detent device 3b, wherebythe latter is permitted to resume its normal position, the rod 42 beingoppositely moved and into the plane of action of the bypass 00.

It will be remembered that a latch 17 has been described normallyoperative for holding the closer L against opening movement by engagingthe arm 15 of the rocker 15. For tripping said latch 17, the rod 33 isshown having a projection 33, which is adapted to be thrust intoengagement with the pin 17 on the latch 17 at a time near that of thefinal elosin g movement of the valve 28 and subsequent to the cut off ofthe dripstream by the valve 14.5, so that said latch will be therebydepressed and the closer L freed of all restraint, whereby the lattermay be instantly forced open by the pressure of the mass within thebucket.

The front wall of the chute II, it will be remembered, has beendescribed having an opening 21, through which the body of the materialthat is to compose the drip-stream may gravitate; and my presentinvention contemplates the provision of means for regulating the volumeof the said. body or llowing mass of material. The means herein shownfor this purpose consists of a vertically-s1id.- able gate (37, having amovement across the d rip-opening 2i and working in suitable guides, asUS and US, and shown formed onv the inner face of the front wall. ofsaid chute.

A pair of reciprocally effective stops are illustrated operative,respectively, with the valve and with the closersubstantially in themanner disclosed in Letters Patent No. 548,840, granted to me October2!), 18515, to which reference maybe had. The rocker 15 constitutes thecloser-operative stop, and the coacting or valvc-operati ve stop isdcsignat ed by 7o.

Briefly, the operation of the herein-dcscribed weighing-machine asfollows: Fig. 1 represents the positions occupied by the re spectiveoperative parts of the machine at the commencement of operation, thecloser being shut and locked in such position by the latch 17, which isin engagement with the rockcrarm 15, the valve 28 being open and. thefeeder F at rest. The valve being open, the main stream will flow fromthe chute ll and will gravitate into the empty bucket. \Vhen a certainproportion of the load has been received by the bucket, it and the beam.mechanism will descend, the counterweiglited lever 32, descending inunison therewith and falling from under the .rod 33, will permit theclosing of the valve 28 by the counterweighted arm fil thereof. \Yhcnthe valve 28 has cut off the stream of material [lowing from the spout1.8, the bypass will raise the rod -12, the latter oscillating the lever10, the pin it of which moves the counterweighted arm of the detentdevice 30 upward and forces the end 36 thereof from between the teeth ofthe stop-wheel 35, whereby the feeder F may be started by the impact ofthe body of nuiterial in the chute .ll. against the vanes 27 of thefeeder, the mass operating the feeder being subsequently conveyed intothe bucket thereby, as indicated in Fig. l. During this operation thevalve i5 is being slowly closed by its actuating-lever 51, the lattersubsequently cutting off said dri i-stream, and the arm ()5 thereof,being carried into engageim-nt with the rod 43, will thrust the sameupward and move the pin 41 from under the detent 36, the latterinstantly resuming its normal position. During the final closingmovement of the valve 28 the projection 33' on the rod 233 will beforced into contact with the latch-pin 17, thereby depressing the latch17, which frees the closer L, so that it maybe forced. open by theweight of the bucket contents, the load being discharged into thechamber of the base 3, as indicated in Fig. (3.

Having described my invention, I claim 1. The combination with weighingmechanism embodying a bucket, of a chute; of a feeder driven by materialpassing through said chute and operable for supplyin mate rial to saidbucket.

2. The combination with weighing mechanism embodying a bucket, of achute having a drip-stream opening; and a feeder driven by materialpassing through said chute and operable for supplying material to thebucket.

3. The combination with weighing mechanism embodying a bucket, ofachute; a feeder driven by material passing through said chute andoperable for supplying material to said bucket; and means for holdingsaid feeder against movement.

a. The combination with weighing mechanism embodying a bucket, of achute having a main-stream outlet; and a feeder driven by materialpassing through said chute and operable for supplying material to thebucket.

5. The combination with weighing mechanism embodying a bucket, of achute having a main-stream outlet and a drip-openin g; and a feederlocated adjacent to said drip-opening and driven by material passingtherethrough, said feeder being controlled by the weighing mechanism.

(S. The combination with weighing mechanism embodying a bucket, of achute; and a feeder bodily movable through said chute and driven bydescending material within said chute and controlled by means operativewith the weighing mechanism.

7. The combination with weighing mechanism embodying a bucket, of achute having a main-stream outlet and a dripchamber; and a feeder bodilymovable through said chamber and operable for supplying material to saidbucket.

S. The combination with weighing mech anism embodying a bucket, of achute having a nIain-stream outlet and a drip-chamber; and a feederbodily movable through said drip-chamber and driven by materialdescending therein, said feeder being operable for supplying material tothe bucket.

9. The combination with a bucket, of a chute; a feeder located adjacentto, and driven v by material passing through, said chute; and

a cut-off valve.

10. The combination with weighing mechanism embodying a bucket, of achute having a main-stream opening and provided also with adrip-opening, of a feeder located adjacent to said chute and driven bymaterial passing through one of said openings, said feeder being alsooperable for supplying material to the bucket.

11. The combination with weighing mechanism embodying a bucket, of achute having an opening; a feeder located adjacent to said chute anddriven by material passing through said opening, said feeder being alsooperable for supplying material to said bucket; and means for regulatingthe volume of the material passing through said opening.

12. The combination with weighing mechanism, of a chute; a feederlocated adjacent to said chute and driven by material passingtherethrough and means operative with said weighing mechanism forcontrolling the action of said feeder.

The combination with a chute having a main -stream outlet and a eonduit, said chute also having an inclined plate leading therefrom to saidconduit; of a feeder operable in said conduit and driven by materialpassing through said conduit.

14.. The combination with weighing mechanism embodying a bucket, of achute and a valve therefor; a feeder located adjacent to said chute anddriven by material passing therethrough, said feeder being alsooperable. for supplying such material to the bucket; and means operativewith the valve for controlling the action of said feeder.

15. The combination with a chute having a main-stream outlet andprovided also with a drip-opening, of a feeder located adjacent to saidchute and driven by material passing through said chute and operablealso for conveying the same therefrom; and a valve mov able below saidfeeder.

16. The combination with weighing mechanism embodying a bucket, of achute having a main-stream outlet and provided also with a drip-opening;a feeder operated by material passing through said chute and operablefor supplying material to the bucket; and a gate slidable across saidopening for regulating the volume of a stream of material. flowingthrough said drip-openin g.

17. The combination with a chute having a main-stream outlet andprovided also with a drip-opening, of a valve operable for controllingthe main stream; a feeder driven by material passing through saiddrip-openin g; and a valve movable below said feeder.

18. The combination with a chute having a tubular conduit, of a feederbodily movable through said conduit; and weighing mechanism controllingthe action of said feeder and comprising a valvehaving a movement belowsaid feeder.

19. The combination with weighing mechanism embodying a bucket, of achute having a tubular conduit; a feeder comprising a chain having aseries of floats, said feeder being driven by material passing throughsaid conduit and controlled in its action by means operative with theweighing mechanism.

20. The combination with a chute, of a feeder; a detent for holding thesame against movement; a lever for actuating said detent, said leverhaving a pair of depending rods; and means for operating said rods andthereby actuating the same.

21. The combination with a chute, of a feeder; a detent for holding saidfeeder against movement; an actuator for said detent; and a valveprovided with a device for operating said actuator.

The combination with a chute, of a feeder; a detent for holding saidfeeder against movement; an actuator for said detent; and

a valve provided with. a bypass device for operating said actuator.

The combination with a chute, of a feeder; a eounterweighted detentdevice for holding said feeder against movement; an actuator for saiddeten t device; and a valve pro vided with a device for operating said.actuator.

21L. The combination with. a chute, of a feeder; a detent deviceforholding said feeder against movement; a compound lever for actuatingsaid detent device, said compound lever having a pair of depending rods;and weighing mechanism provided with means for operating said rods.

25. The combination with a chute, of a feeder; a detent device therefor;a compound lever for actuating said detent device, said lever havingapair of depending rods; and a pair of valves provided with means foroperating said rods.

26. The combination with a chute, of a feeder consisting of an endlesschain provided with a series of floats; supportin g-shafts for saidfeeder, one of which is provided with a stop-wheel a detent for engagingsaid stopwheel; and weighing mechanism embodying means for throwing saiddetent into an inoperative position.

27. The combination with a chute, of a feeder consisting of an endlesschain provided with a series of floats; supporting-shafts for saidfeeder, one of which is provided with a stop-wheel; a detent operativefor engaging said stop-wheel; a compound lever for actuating said detentand furnished with a pair of depending rods; and a pair of valvesprovided with means for operating said. rods.

28. The combination with a chute, of a chain-feeder; supporting-shaftsfor said feeder, one of which is provided with a stop-wheel a detent forlocking said stop-wheel; and means for actuating said detent.

20. The combination with a feeder operated by a stream of material, of acut-off valve; a rod connected to said valve; and a shiftable lever alsoconnected to said rod.

3U. The combination with weighing mechanism and a bucket supportedthereby, of a supply-chute; a feeder operated by material issuing fromsaid chute; a cut-off valve; a rod connected to said valve; and meansfor actuating said .rod.

231. In a weighing-machine, the combination with beam mechanism andwith. a bucket supported thereby, of a hopper having main and dripstream openings and valves for con trolling the passage of materialthrough said openings; of a drip-stream feeder actuated by materialpassing through the drip-opening; and mechanism actuated by one of thevalves for controlling the action of said feeder.

332. The combination with weighing mechanism embodying a bucket, of afeeder driven by material delivered to said bucket and controlled by theweighing meclmnisin.

FRANCIS 1T. RICHARDS.

Witnesses:

FRED. J. DOLE, HEATH SUTHERLAND.

